This is a terraform module that creates an email forwarder using a combination of AWS SES and Lambda running the aws-lambda-ses-forwarder NPM module.
This project is part of our comprehensive "SweetOps" approach towards DevOps.
It's 100% Open Source and licensed under the APACHE2.
We literally have hundreds of terraform modules that are Open Source and well-maintained. Check them out!
This module provisions a NodeJS script as a AWS Lambda function that uses the inbound/outbound capabilities of AWS Simple Email Service (SES) to run a "serverless" email forwarding service.
Use this module instead of setting up an email server on a dedicated EC2 instance to handle email redirects. It uses AWS SES to receive email and then trigger a Lambda function to process it and forward it on to the chosen destination. This script will allow forwarding emails from any sender to verified destination emails (e.g. opt-in).
The SES service only allows sending email from verified addresses or domains. As such, it's mostly suitable for transactional emails (e.g. alerts or notifications). The incoming messages are modified to allow forwarding through SES and reflect the original sender. This script adds a Reply-To header with the original sender's email address, but the From header is changed to display the SES email address.
For example, an email sent by John Doe <jonh@example.com> to hello@example.com will be transformed to:
From: John Doe at john@example.com <hello@example.com>
Reply-To: john@example.com
To override this behavior, set a verified fromEmail address (e.g., noreply@example.com) in the config
object and the header will look like this.
From: John Doe <noreply@example.com>
Reply-To: john@example.com
NOTE: SES only allows receiving email sent to addresses within verified domains. For more information, see: http://docs.aws.amazon.com/ses/latest/DeveloperGuide/verify-domains.html
Initially SES users are in a sandbox environment that has a number of limitations. See: http://docs.aws.amazon.com/ses/latest/DeveloperGuide/limits.html
IMPORTANT: The master branch is used in source just as an example. In your code, do not pin to master because there may be breaking changes between releases.
Instead pin to the release tag (e.g. ?ref=tags/x.y.z) of one of our latest releases.
For a complete example, see examples/complete.
For automated tests of the complete example using bats and Terratest (which tests and deploys the example on AWS), see test.
variable "relay_email" {
default = "example@example.com"
description = "Email that used to relay from"
}
variable "forward_emails" {
type = map(list(string))
default = {
"some_email@example.com" = ["my_email@example.com"]
"other_email@example.com" = ["my_email@example.com"]
}
description = "Emails forward map"
}
module "ses_lambda_forwarder" {
source = "git::https://github.com/cloudposse/terraform-aws-ses-lambda-forwarder.git?ref=master"
namespace = var.namespace
stage = var.stage
name = var.name
delimiter = var.delimiter
attributes = var.attributes
tags = var.tags
region = var.region
domain = var.domain
relay_email = var.relay_email
forward_emails = var.forward_emails
}Available targets:
help Help screen
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help/short This help short screen
lint Lint terraform code
| Name | Description | Type | Default | Required |
|---|---|---|---|---|
| artifact_filename | Artifact filename | string | lambda.zip |
no |
| artifact_url | URL template for the remote artifact | string | https://artifacts.cloudposse.com/$$${module_name}/$$${git_ref}/$$${filename} |
no |
| attributes | Additional attributes (e.g. 1) |
list(string) | <list> |
no |
| delimiter | Delimiter to be used between namespace, stage, name and attributes |
string | - |
no |
| domain | Root domain name | string | - | yes |
| forward_emails | Map of forward emails | map(list(string)) | <map> |
no |
| lambda_runtime | Lambda runtime | string | nodejs8.10 |
no |
| name | Application or solution name (e.g. app) |
string | ses |
no |
| namespace | Namespace (e.g. cp or cloudposse) |
string | `` | no |
| region | AWS Region the SES should reside in | string | - | yes |
| relay_email | Email that used to relay from | string | - | yes |
| spf | DNS SPF record value | string | v=spf1 include:amazonses.com -all |
no |
| stage | Stage (e.g. prod, dev, staging) |
string | `` | no |
| tags | Additional tags (e.g. map(BusinessUnit,XYZ) |
map(string) | <map> |
no |
| Name | Description |
|---|---|
| artifact_base64sha256 | Base64 encoded SHA256 hash of the artifact file |
| artifact_file | Full path to the locally downloaded artifact |
| artifact_git_ref | Git commit hash corresponding to the artifact |
| artifact_url | URL corresponding to the artifact |
| lambda_function_arn | Lamnda Function ARN |
| lambda_function_source_code_size | The size in bytes of the Lambda Function .zip file |
| lambda_function_version | Latest published version of the Lambda Function |
| lambda_iam_policy_arn | Lamnda IAM Policy ARN |
| lambda_iam_policy_id | Lamnda IAM Policy ID |
| lambda_iam_policy_name | Lamnda IAM Policy name |
| s3_bucket_arn | Lamnda IAM Policy ARN |
| s3_bucket_domain_name | Lamnda IAM Policy ARN |
| s3_bucket_id | Lamnda IAM Policy name |
| ses_domain_identity_arn | The ARN of the domain identity |
| ses_domain_identity_verification_arn | The ARN of the domain identity |
| ses_receipt_rule_name | The name of the SES receipt rule |
| ses_receipt_rule_set_name | The name of the SES receipt rule set |
For additional context, refer to some of these links.
- aws-lambda-ses-forwarder - A Node.js script for AWS Lambda that uses the inbound/outbound capabilities of AWS Simple Email Service (SES) to run a "serverless" email forwarding service.
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